PART II: INSTALLATION
23
Siemens VGD20.. e VGD40..
Components and position of pressure switches
Connection of actuator SKP2... to gas train
Siemens SKP2.. (pressure governor)
- Connect the reference gas pipe (
TP
in figure; 8mm-external size pipe supplied loose), to the gas pressure nipples placed on the gas
pipe, downstream the gas valves: gas pressure must be measured at a distance that must be at least 5 times the pipe size.
- Leave the blowhole free (
SA
in figure). Should the spring fitted not permit satisfactory regulation, ask one of our service centres for a
suitable replacement.
- D: pressure adjustment spring seat
version with SKP2 (built-in pressure stabilizer)Siemens VGD../VRD.. SKPx5 (Auxiliary-optional micro
switch))Gas valve
If the auxiliary microswitch (POC) is required, a dedicated actuator, different from the one usually supplied, must be ordered. The con-
nection is shown in the figure.
WARNING: removing the four screws BS causes the device to be unserviceable!
3
5
2
1
4
6
6
8
SKP15
SKP25
SKP15
SKP25
5
2
1
3
4
7
1
PGMIN minimum gas pressure switch
2
PGMIN minimum gas pressure switch (alternative
to 1)
3
PGCP leakage control gas pressure switch
4
PGMAX maximum gas pressure switch
5
Actuator with integrated pressure stabiliser
6
On-Off actuator
7
Valve body (Threaded)
8
Valve body (Flange)
min. 5 Ø
Ø
TP
BS
SA
D
SKP2
Valve drive
AGA64 -
Plug connection
ON-OFF
End of stroke
End of stroke
Plug connection
(POC)
Valve
drive
AG
A64
Valve
drive
AG
A65
Содержание TLX92R
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Страница 45: ...LME73 000Ax PME73 831AxBC LME73 831AxBC Service instruction manual M12921CB Rel 1 2 02 2016...
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Страница 68: ...Note Specifications and data subject to change Errors and omissions excepted...